Home / 15,870.20-23,805.63-5,340.53

Finding the Fourth Proportional to 15,870.20, 23,805.63 and 5,340.53

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Solution

The fourth proportional to 15,870.20, 23,805.63 and 5,340.53 is: 8,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.20 : 23,805.63 = 5,340.53 : x
  2. Step 2: Convert to fraction form
    15,870.20/23,805.63 = 5,340.53/x
  3. Step 3: Cross multiply
    15,870.20x = 23,805.63 × 5,340.53
  4. Step 4: Simplify right side
    15,870.20x = 127,134,740.70
  5. Step 5: Solve for x
    x = 127,134,740.70/15,870.20
  6. Step 6: Final answer
    x = 8,010.91

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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.