Home / 13,041.12-17,970.48-9,308.64

Finding the Fourth Proportional to 13,041.12, 17,970.48 and 9,308.64

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Solution

The fourth proportional to 13,041.12, 17,970.48 and 9,308.64 is: 12,827.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.12 : 17,970.48 = 9,308.64 : x
  2. Step 2: Convert to fraction form
    13,041.12/17,970.48 = 9,308.64/x
  3. Step 3: Cross multiply
    13,041.12x = 17,970.48 × 9,308.64
  4. Step 4: Simplify right side
    13,041.12x = 167,280,728.95
  5. Step 5: Solve for x
    x = 167,280,728.95/13,041.12
  6. Step 6: Final answer
    x = 12,827.18

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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.