Home / 9,775.13-13,489.70-5,298.89

Finding the Fourth Proportional to 9,775.13, 13,489.70 and 5,298.89

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Solution

The fourth proportional to 9,775.13, 13,489.70 and 5,298.89 is: 7,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775.13 : 13,489.70 = 5,298.89 : x
  2. Step 2: Convert to fraction form
    9,775.13/13,489.70 = 5,298.89/x
  3. Step 3: Cross multiply
    9,775.13x = 13,489.70 × 5,298.89
  4. Step 4: Simplify right side
    9,775.13x = 71,480,342.49
  5. Step 5: Solve for x
    x = 71,480,342.49/9,775.13
  6. Step 6: Final answer
    x = 7,312.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.