Home / 10,130.56-14,034.52-9,888.64

Finding the Fourth Proportional to 10,130.56, 14,034.52 and 9,888.64

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Solution

The fourth proportional to 10,130.56, 14,034.52 and 9,888.64 is: 13,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.56 : 14,034.52 = 9,888.64 : x
  2. Step 2: Convert to fraction form
    10,130.56/14,034.52 = 9,888.64/x
  3. Step 3: Cross multiply
    10,130.56x = 14,034.52 × 9,888.64
  4. Step 4: Simplify right side
    10,130.56x = 138,782,315.85
  5. Step 5: Solve for x
    x = 138,782,315.85/10,130.56
  6. Step 6: Final answer
    x = 13,699.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.