Home / 14,985.37-20,688.09-9,018.50

Finding the Fourth Proportional to 14,985.37, 20,688.09 and 9,018.50

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Solution

The fourth proportional to 14,985.37, 20,688.09 and 9,018.50 is: 12,450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.37 : 20,688.09 = 9,018.50 : x
  2. Step 2: Convert to fraction form
    14,985.37/20,688.09 = 9,018.50/x
  3. Step 3: Cross multiply
    14,985.37x = 20,688.09 × 9,018.50
  4. Step 4: Simplify right side
    14,985.37x = 186,575,539.67
  5. Step 5: Solve for x
    x = 186,575,539.67/14,985.37
  6. Step 6: Final answer
    x = 12,450.52

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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.