Home / 15,038.71-20,762.84-9,663.32

Finding the Fourth Proportional to 15,038.71, 20,762.84 and 9,663.32

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Solution

The fourth proportional to 15,038.71, 20,762.84 and 9,663.32 is: 13,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.71 : 20,762.84 = 9,663.32 : x
  2. Step 2: Convert to fraction form
    15,038.71/20,762.84 = 9,663.32/x
  3. Step 3: Cross multiply
    15,038.71x = 20,762.84 × 9,663.32
  4. Step 4: Simplify right side
    15,038.71x = 200,637,967.03
  5. Step 5: Solve for x
    x = 200,637,967.03/15,038.71
  6. Step 6: Final answer
    x = 13,341.43

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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.