Home / 10,458.51-15,690.18-3,439.13

Finding the Fourth Proportional to 10,458.51, 15,690.18 and 3,439.13

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Solution

The fourth proportional to 10,458.51, 15,690.18 and 3,439.13 is: 5,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.51 : 15,690.18 = 3,439.13 : x
  2. Step 2: Convert to fraction form
    10,458.51/15,690.18 = 3,439.13/x
  3. Step 3: Cross multiply
    10,458.51x = 15,690.18 × 3,439.13
  4. Step 4: Simplify right side
    10,458.51x = 53,960,490.29
  5. Step 5: Solve for x
    x = 53,960,490.29/10,458.51
  6. Step 6: Final answer
    x = 5,159.48

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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.