Home / 15,547.36-21,450-10,829.92

Finding the Fourth Proportional to 15,547.36, 21,450 and 10,829.92

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Solution

The fourth proportional to 15,547.36, 21,450 and 10,829.92 is: 14,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.36 : 21,450 = 10,829.92 : x
  2. Step 2: Convert to fraction form
    15,547.36/21,450 = 10,829.92/x
  3. Step 3: Cross multiply
    15,547.36x = 21,450 × 10,829.92
  4. Step 4: Simplify right side
    15,547.36x = 232,301,784
  5. Step 5: Solve for x
    x = 232,301,784/15,547.36
  6. Step 6: Final answer
    x = 14,941.56

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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.