Home / 15,628.02-21,566.79-9,658.32

Finding the Fourth Proportional to 15,628.02, 21,566.79 and 9,658.32

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Solution

The fourth proportional to 15,628.02, 21,566.79 and 9,658.32 is: 13,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.02 : 21,566.79 = 9,658.32 : x
  2. Step 2: Convert to fraction form
    15,628.02/21,566.79 = 9,658.32/x
  3. Step 3: Cross multiply
    15,628.02x = 21,566.79 × 9,658.32
  4. Step 4: Simplify right side
    15,628.02x = 208,298,959.19
  5. Step 5: Solve for x
    x = 208,298,959.19/15,628.02
  6. Step 6: Final answer
    x = 13,328.56

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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.