Home / 15,628.16-21,564.80-10,038.08

Finding the Fourth Proportional to 15,628.16, 21,564.80 and 10,038.08

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Solution

The fourth proportional to 15,628.16, 21,564.80 and 10,038.08 is: 13,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.16 : 21,564.80 = 10,038.08 : x
  2. Step 2: Convert to fraction form
    15,628.16/21,564.80 = 10,038.08/x
  3. Step 3: Cross multiply
    15,628.16x = 21,564.80 × 10,038.08
  4. Step 4: Simplify right side
    15,628.16x = 216,469,187.58
  5. Step 5: Solve for x
    x = 216,469,187.58/15,628.16
  6. Step 6: Final answer
    x = 13,851.23

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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.