Home / 11,507.12-15,875.34-6,470.18

Finding the Fourth Proportional to 11,507.12, 15,875.34 and 6,470.18

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Solution

The fourth proportional to 11,507.12, 15,875.34 and 6,470.18 is: 8,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.12 : 15,875.34 = 6,470.18 : x
  2. Step 2: Convert to fraction form
    11,507.12/15,875.34 = 6,470.18/x
  3. Step 3: Cross multiply
    11,507.12x = 15,875.34 × 6,470.18
  4. Step 4: Simplify right side
    11,507.12x = 102,716,307.36
  5. Step 5: Solve for x
    x = 102,716,307.36/11,507.12
  6. Step 6: Final answer
    x = 8,926.33

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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.