Home / 15,587.03-21,509.75-8,513.48

Finding the Fourth Proportional to 15,587.03, 21,509.75 and 8,513.48

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Solution

The fourth proportional to 15,587.03, 21,509.75 and 8,513.48 is: 11,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.03 : 21,509.75 = 8,513.48 : x
  2. Step 2: Convert to fraction form
    15,587.03/21,509.75 = 8,513.48/x
  3. Step 3: Cross multiply
    15,587.03x = 21,509.75 × 8,513.48
  4. Step 4: Simplify right side
    15,587.03x = 183,122,676.31
  5. Step 5: Solve for x
    x = 183,122,676.31/15,587.03
  6. Step 6: Final answer
    x = 11,748.40

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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.