Home / 15,587.02-21,509.26-8,512.06

Finding the Fourth Proportional to 15,587.02, 21,509.26 and 8,512.06

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Solution

The fourth proportional to 15,587.02, 21,509.26 and 8,512.06 is: 11,746.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.02 : 21,509.26 = 8,512.06 : x
  2. Step 2: Convert to fraction form
    15,587.02/21,509.26 = 8,512.06/x
  3. Step 3: Cross multiply
    15,587.02x = 21,509.26 × 8,512.06
  4. Step 4: Simplify right side
    15,587.02x = 183,088,111.68
  5. Step 5: Solve for x
    x = 183,088,111.68/15,587.02
  6. Step 6: Final answer
    x = 11,746.19

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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.