Home / 11,501.10-15,870.12-6,464.76

Finding the Fourth Proportional to 11,501.10, 15,870.12 and 6,464.76

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Solution

The fourth proportional to 11,501.10, 15,870.12 and 6,464.76 is: 8,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,501.10 : 15,870.12 = 6,464.76 : x
  2. Step 2: Convert to fraction form
    11,501.10/15,870.12 = 6,464.76/x
  3. Step 3: Cross multiply
    11,501.10x = 15,870.12 × 6,464.76
  4. Step 4: Simplify right side
    11,501.10x = 102,596,516.97
  5. Step 5: Solve for x
    x = 102,596,516.97/11,501.10
  6. Step 6: Final answer
    x = 8,920.58

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.