Home / 14,158.38-19,539.48-7,870.74

Finding the Fourth Proportional to 14,158.38, 19,539.48 and 7,870.74

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Solution

The fourth proportional to 14,158.38, 19,539.48 and 7,870.74 is: 10,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.38 : 19,539.48 = 7,870.74 : x
  2. Step 2: Convert to fraction form
    14,158.38/19,539.48 = 7,870.74/x
  3. Step 3: Cross multiply
    14,158.38x = 19,539.48 × 7,870.74
  4. Step 4: Simplify right side
    14,158.38x = 153,790,166.82
  5. Step 5: Solve for x
    x = 153,790,166.82/14,158.38
  6. Step 6: Final answer
    x = 10,862.13

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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.