Home / 15,307.56-21,123.87-9,349.20

Finding the Fourth Proportional to 15,307.56, 21,123.87 and 9,349.20

Calculator

Solution

The fourth proportional to 15,307.56, 21,123.87 and 9,349.20 is: 12,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.56 : 21,123.87 = 9,349.20 : x
  2. Step 2: Convert to fraction form
    15,307.56/21,123.87 = 9,349.20/x
  3. Step 3: Cross multiply
    15,307.56x = 21,123.87 × 9,349.20
  4. Step 4: Simplify right side
    15,307.56x = 197,491,285.40
  5. Step 5: Solve for x
    x = 197,491,285.40/15,307.56
  6. Step 6: Final answer
    x = 12,901.55

Related Problems

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.