Home / 8,123.86-11,210.70-4,587.40

Finding the Fourth Proportional to 8,123.86, 11,210.70 and 4,587.40

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Solution

The fourth proportional to 8,123.86, 11,210.70 and 4,587.40 is: 6,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.86 : 11,210.70 = 4,587.40 : x
  2. Step 2: Convert to fraction form
    8,123.86/11,210.70 = 4,587.40/x
  3. Step 3: Cross multiply
    8,123.86x = 11,210.70 × 4,587.40
  4. Step 4: Simplify right side
    8,123.86x = 51,427,965.18
  5. Step 5: Solve for x
    x = 51,427,965.18/8,123.86
  6. Step 6: Final answer
    x = 6,330.48

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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.