Home / 15,683.02-21,642.48-8,513.08

Finding the Fourth Proportional to 15,683.02, 21,642.48 and 8,513.08

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Solution

The fourth proportional to 15,683.02, 21,642.48 and 8,513.08 is: 11,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.02 : 21,642.48 = 8,513.08 : x
  2. Step 2: Convert to fraction form
    15,683.02/21,642.48 = 8,513.08/x
  3. Step 3: Cross multiply
    15,683.02x = 21,642.48 × 8,513.08
  4. Step 4: Simplify right side
    15,683.02x = 184,244,163.64
  5. Step 5: Solve for x
    x = 184,244,163.64/15,683.02
  6. Step 6: Final answer
    x = 11,748.00

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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.