Home / 15,430.47-21,306.75-9,463.59

Finding the Fourth Proportional to 15,430.47, 21,306.75 and 9,463.59

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Solution

The fourth proportional to 15,430.47, 21,306.75 and 9,463.59 is: 13,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.47 : 21,306.75 = 9,463.59 : x
  2. Step 2: Convert to fraction form
    15,430.47/21,306.75 = 9,463.59/x
  3. Step 3: Cross multiply
    15,430.47x = 21,306.75 × 9,463.59
  4. Step 4: Simplify right side
    15,430.47x = 201,638,346.23
  5. Step 5: Solve for x
    x = 201,638,346.23/15,430.47
  6. Step 6: Final answer
    x = 13,067.54

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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.