Home / 10,555.19-15,840.53-5,008.51

Finding the Fourth Proportional to 10,555.19, 15,840.53 and 5,008.51

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Solution

The fourth proportional to 10,555.19, 15,840.53 and 5,008.51 is: 7,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.19 : 15,840.53 = 5,008.51 : x
  2. Step 2: Convert to fraction form
    10,555.19/15,840.53 = 5,008.51/x
  3. Step 3: Cross multiply
    10,555.19x = 15,840.53 × 5,008.51
  4. Step 4: Simplify right side
    10,555.19x = 79,337,452.91
  5. Step 5: Solve for x
    x = 79,337,452.91/10,555.19
  6. Step 6: Final answer
    x = 7,516.44

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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.