Home / 15,756.02-21,743.73-9,708.29

Finding the Fourth Proportional to 15,756.02, 21,743.73 and 9,708.29

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Solution

The fourth proportional to 15,756.02, 21,743.73 and 9,708.29 is: 13,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.02 : 21,743.73 = 9,708.29 : x
  2. Step 2: Convert to fraction form
    15,756.02/21,743.73 = 9,708.29/x
  3. Step 3: Cross multiply
    15,756.02x = 21,743.73 × 9,708.29
  4. Step 4: Simplify right side
    15,756.02x = 211,094,327.80
  5. Step 5: Solve for x
    x = 211,094,327.80/15,756.02
  6. Step 6: Final answer
    x = 13,397.70

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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.