Home / 15,688.74-23,535.65-5,155.71

Finding the Fourth Proportional to 15,688.74, 23,535.65 and 5,155.71

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Solution

The fourth proportional to 15,688.74, 23,535.65 and 5,155.71 is: 7,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.74 : 23,535.65 = 5,155.71 : x
  2. Step 2: Convert to fraction form
    15,688.74/23,535.65 = 5,155.71/x
  3. Step 3: Cross multiply
    15,688.74x = 23,535.65 × 5,155.71
  4. Step 4: Simplify right side
    15,688.74x = 121,342,986.06
  5. Step 5: Solve for x
    x = 121,342,986.06/15,688.74
  6. Step 6: Final answer
    x = 7,734.40

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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.