Home / 12,426.68-18,639.51-5,031.20

Finding the Fourth Proportional to 12,426.68, 18,639.51 and 5,031.20

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Solution

The fourth proportional to 12,426.68, 18,639.51 and 5,031.20 is: 7,546.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.68 : 18,639.51 = 5,031.20 : x
  2. Step 2: Convert to fraction form
    12,426.68/18,639.51 = 5,031.20/x
  3. Step 3: Cross multiply
    12,426.68x = 18,639.51 × 5,031.20
  4. Step 4: Simplify right side
    12,426.68x = 93,779,102.71
  5. Step 5: Solve for x
    x = 93,779,102.71/12,426.68
  6. Step 6: Final answer
    x = 7,546.59

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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.