Home / 15,471.19-21,350.28-9,502.77

Finding the Fourth Proportional to 15,471.19, 21,350.28 and 9,502.77

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Solution

The fourth proportional to 15,471.19, 21,350.28 and 9,502.77 is: 13,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.19 : 21,350.28 = 9,502.77 : x
  2. Step 2: Convert to fraction form
    15,471.19/21,350.28 = 9,502.77/x
  3. Step 3: Cross multiply
    15,471.19x = 21,350.28 × 9,502.77
  4. Step 4: Simplify right side
    15,471.19x = 202,886,800.28
  5. Step 5: Solve for x
    x = 202,886,800.28/15,471.19
  6. Step 6: Final answer
    x = 13,113.85

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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.