Home / 9,430.30-13,013.76-5,123.35

Finding the Fourth Proportional to 9,430.30, 13,013.76 and 5,123.35

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Solution

The fourth proportional to 9,430.30, 13,013.76 and 5,123.35 is: 7,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.30 : 13,013.76 = 5,123.35 : x
  2. Step 2: Convert to fraction form
    9,430.30/13,013.76 = 5,123.35/x
  3. Step 3: Cross multiply
    9,430.30x = 13,013.76 × 5,123.35
  4. Step 4: Simplify right side
    9,430.30x = 66,674,021.68
  5. Step 5: Solve for x
    x = 66,674,021.68/9,430.30
  6. Step 6: Final answer
    x = 7,070.19

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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.