Home / 12,904.07-17,808.65-7,528.16

Finding the Fourth Proportional to 12,904.07, 17,808.65 and 7,528.16

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Solution

The fourth proportional to 12,904.07, 17,808.65 and 7,528.16 is: 10,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.07 : 17,808.65 = 7,528.16 : x
  2. Step 2: Convert to fraction form
    12,904.07/17,808.65 = 7,528.16/x
  3. Step 3: Cross multiply
    12,904.07x = 17,808.65 × 7,528.16
  4. Step 4: Simplify right side
    12,904.07x = 134,066,239.90
  5. Step 5: Solve for x
    x = 134,066,239.90/12,904.07
  6. Step 6: Final answer
    x = 10,389.46

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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.