Home / 15,386.64-23,087.16-7,987.08

Finding the Fourth Proportional to 15,386.64, 23,087.16 and 7,987.08

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Solution

The fourth proportional to 15,386.64, 23,087.16 and 7,987.08 is: 11,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.64 : 23,087.16 = 7,987.08 : x
  2. Step 2: Convert to fraction form
    15,386.64/23,087.16 = 7,987.08/x
  3. Step 3: Cross multiply
    15,386.64x = 23,087.16 × 7,987.08
  4. Step 4: Simplify right side
    15,386.64x = 184,398,993.89
  5. Step 5: Solve for x
    x = 184,398,993.89/15,386.64
  6. Step 6: Final answer
    x = 11,984.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.