Home / 15,636.48-21,581.70-9,969.93

Finding the Fourth Proportional to 15,636.48, 21,581.70 and 9,969.93

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Solution

The fourth proportional to 15,636.48, 21,581.70 and 9,969.93 is: 13,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.48 : 21,581.70 = 9,969.93 : x
  2. Step 2: Convert to fraction form
    15,636.48/21,581.70 = 9,969.93/x
  3. Step 3: Cross multiply
    15,636.48x = 21,581.70 × 9,969.93
  4. Step 4: Simplify right side
    15,636.48x = 215,168,038.28
  5. Step 5: Solve for x
    x = 215,168,038.28/15,636.48
  6. Step 6: Final answer
    x = 13,760.64

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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.