Home / 10,614.19-15,939.77-9,779.70

Finding the Fourth Proportional to 10,614.19, 15,939.77 and 9,779.70

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Solution

The fourth proportional to 10,614.19, 15,939.77 and 9,779.70 is: 14,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.19 : 15,939.77 = 9,779.70 : x
  2. Step 2: Convert to fraction form
    10,614.19/15,939.77 = 9,779.70/x
  3. Step 3: Cross multiply
    10,614.19x = 15,939.77 × 9,779.70
  4. Step 4: Simplify right side
    10,614.19x = 155,886,168.67
  5. Step 5: Solve for x
    x = 155,886,168.67/10,614.19
  6. Step 6: Final answer
    x = 14,686.58

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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.