Home / 15,570.02-21,485.97-8,854.71

Finding the Fourth Proportional to 15,570.02, 21,485.97 and 8,854.71

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Solution

The fourth proportional to 15,570.02, 21,485.97 and 8,854.71 is: 12,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,570.02 : 21,485.97 = 8,854.71 : x
  2. Step 2: Convert to fraction form
    15,570.02/21,485.97 = 8,854.71/x
  3. Step 3: Cross multiply
    15,570.02x = 21,485.97 × 8,854.71
  4. Step 4: Simplify right side
    15,570.02x = 190,252,033.42
  5. Step 5: Solve for x
    x = 190,252,033.42/15,570.02
  6. Step 6: Final answer
    x = 12,219.13

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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.