Home / 15,688.56-23,565.66-13,228.20

Finding the Fourth Proportional to 15,688.56, 23,565.66 and 13,228.20

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Solution

The fourth proportional to 15,688.56, 23,565.66 and 13,228.20 is: 19,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.56 : 23,565.66 = 13,228.20 : x
  2. Step 2: Convert to fraction form
    15,688.56/23,565.66 = 13,228.20/x
  3. Step 3: Cross multiply
    15,688.56x = 23,565.66 × 13,228.20
  4. Step 4: Simplify right side
    15,688.56x = 311,731,263.61
  5. Step 5: Solve for x
    x = 311,731,263.61/15,688.56
  6. Step 6: Final answer
    x = 19,869.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.